fix: remove separate file functions

Author: andrew-field

21-40/22_name_scores.go

@@ -2,10 +2,9 @@ package euler2
 
 import (
 	"encoding/csv"
+	"os"
 	"sort"
 	"sync"
-
-	"github.com/andrew-field/projecteuler-go/filefunctions"
 )
 
 var (
@@ -42,13 +41,18 @@ var (
 
 // nameScores returns the summation of all the name scores in the file p022_names.txt
 func nameScores() int {
-	f := filefunctions.OpenFile("p022_names.txt")
-	defer filefunctions.CloseFile(f)
+	f, err := os.Open("p022_names.txt")
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
 
 	// Read names and sort.
 	reader := csv.NewReader(f)
 	records, err := reader.ReadAll()
-	filefunctions.Check(err)
+	if err != nil {
+		panic(err)
+	}
 	names := records[0]
 	sort.Strings(names) // Score depends on position in list.
 

61-80/67_maximum_path_sum_two.go

@@ -3,17 +3,20 @@ package euler4
 import (
 	"bufio"
 	"io"
+	"os"
 	"strconv"
 
 	"github.com/andrew-field/maths"
-	"github.com/andrew-field/projecteuler-go/filefunctions"
 )
 
 // maximumPathSumTwo returns the maximum total from top to bottom of a pyramid by starting at the top of the triangle
 // and moving to adjacent numbers on the row below.
 func maximumPathSumTwo() int {
-	f := filefunctions.OpenFile("p067_triangle.txt")
-	defer filefunctions.CloseFile(f)
+	f, err := os.Open("p067_triangle.txt")
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
 
 	reader := bufio.NewReader(f) // This reader is used because of its efficiency with many small reads.
 
@@ -26,9 +29,15 @@ func maximumPathSumTwo() int {
 		if err == io.EOF {
 			break
 		}
-		filefunctions.Check(err)
+		if err != nil {
+			panic(err)
+		}
+
 		value, err := strconv.Atoi(string(number))
-		filefunctions.Check(err)
+		if err != nil {
+			panic(err)
+		}
+
 		numbers = append(numbers, value)
 	}